
(function(){
	let bd = document.querySelector('body'),
		bk_discard = document.querySelector('.bk_discard');


	bd.style.background = `url(${localStorage.wallpaper}) no-repeat 0 0 / cover`;

	bk_discard.addEventListener('click', (e) => {
		window.history.back(); // 放弃修改，直接回到书签页面，这里使用 history 会快一点吧
	})
})();